Light Sensitive Titanium Compound Containing Patents (Class 430/947)
  • Patent number: 8759741
    Abstract: A titanium black dispersion includes titanium black particles, a dispersant, and an organic solvent. When the titanium black dispersion is for a wafer level lens, 90% or more of dispersed objects that consist of the titanium black particles have particle diameters of 30 nm or less, or dispersed objects including the titanium black particles contains Si atoms and the content ratio of Si atoms to Ti atoms (Si/Ti) in the dispersed objects is 0.05 or higher. When the titanium black dispersion is used for formation of a light-shielding film that is provided on one side of a silicon substrate having an image pickup device section on the other side, and that shields against infrared light, 90% or more of dispersed objects that consist of the titanium black particles have particle diameters of 30 nm or less.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: June 24, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Makoto Kubota
  • Patent number: 8685599
    Abstract: A method of pulsed laser intrinsic marking can provide a unique identifier to detect tampering or counterfeiting.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: April 1, 2014
    Assignee: Sandia Corporation
    Inventors: David P. Adams, Joel Patrick McDonald, Bradley Howell Jared, V. Carter Hodges, Deidre Hirschfeld, Dianna S. Blair
  • Patent number: 7741006
    Abstract: A method for fabricating a disc stamper is provided. First, a substrate is provided. Next, a layer of a coatable inorganic material is coated on the substrate, wherein the coatable inorganic material is an oxide, in which the chemical element constitution is more than one element selected from the group consisting of Te, Al, Zr, and Ti. Next, a laser beam is utilized to perform direct write on the layer of the coatable inorganic material to form a relief pattern. Thereafter, a metal layer is electroplated on the relief pattern. Next, the metal layer is separated from the relief pattern. The layer of the coatable inorganic material is utilized to form the relief pattern, so that it is more compatibility to equipment apparatus and lower cost in contrast with sputtered PTM process.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: June 22, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chin-Tien Yang, Ming-Fang Hsu, Sheng-Li Chang, Tzuan-Ren Jeng
  • Patent number: 7374861
    Abstract: The present invention is directed to a negative photoresist composition which mainly is composed of a) a polyimide having pendant carboxyl groups, wherein a portion of the carboxyl groups reacted with glycidyl (meth)acrylate monomers to form covalent bonds. The photoresist composition further contains b) monomers having a tertiary amino group and a C?C double bond, which form ionic bonds with the remaining hydroxyl groups of the polyimide. The photoresist composition further contains c) a photoinitiator which is also called photosensitizer. The components a) to c) are all dissolved in a solvent.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: May 20, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Jyh-Long Jeng, Jeng-Yu Tsai, Charng-Shing Lu, Jinn-Shing King
  • Patent number: 7041431
    Abstract: A photosensitive lithographic printing plate comprises a photosensitive layer and a protective layer formed in this order on a support, wherein the photosensitive layer has a maximum peak of spectral sensitivity within a wavelength range ranging from 390 to 430 nm, the minimum exposure for the photosensitive lithographic printing plate for image formation at a wavelength of 410 nm (S410) is at most 100 ?J/cm2, and the relation between the minimum exposure for image formation at a wavelength of 450 nm (S450) and the minimum exposure for image formation at a wavelength of 410 nm (S410) is 0<S410/S450?0.1.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: May 9, 2006
    Assignee: Lastra S.p.A.
    Inventors: Toshiyuki Urano, Kazuhiro Kohori, Hideaki Okamoto
  • Patent number: 6905814
    Abstract: The invention concerns the use of a film-forming titanium dioxide dispersion for cleaning and disinfecting surfaces exposed to light, by depositing a film of titanium dioxide nanoparticles on said surfaces, the continuous phase of said dispersion comprising water and/or at least an alcohol with boiling point at less than 120° C., said dispersion having, when it comprises water, a pH different by at least 1 unit of the value of the titanium dioxide isoelectric pH in said dispersion. The invention also concerns a film-forming titanium dioxide dispersion further comprises a film-forming polymer. The invention further concerns a method for cleaning and disinfecting surfaces exposed to light which consists in depositing and then drying on said surfaces a titanium oxide film-forming dispersion.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: June 14, 2005
    Assignee: Rhodia Chimie
    Inventors: Eric Aubay, Thierry Chopin, Cédric Geffroy, Véronique Guillou, Corinne Lehaut
  • Patent number: 6878505
    Abstract: A photosensitive composition comprising (i) a sensitizing dye represented by the following formula (I), (II) or (III) defined in the specification, (ii) a titanocene compound and (iii) a compound of undergoing a reaction with at least one of a radical and an acid to change at least one of its physical and chemical properties and maintaining the changed physical or chemical property, and a lithographic printing plate having a photosensitive layer comprising the photosensitive composition.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: April 12, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akinori Shibuya, Kazuto Kunita
  • Patent number: 6861200
    Abstract: A negative working photosensitive lithographic printing plate is disclosed, which comprises a support having thereon at least one photosensitive layer containing a polymeric binder having repeating units represented by formula (I): wherein R1 represents a hydrogen atom or a methyl group; R2 represents a hydrocarbon group which has an alicyclic structure and has 3 to 30 carbon atoms and a valence of n+1; A represents an oxygen atom or —NR3—, wherein R3 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 10 carbon atoms; and n is an integer of 1 to 5. The negative working photosensitive lithographic printing plate can attain both high productivity and high printing durability. It is especially suitable for drawing with laser light.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: March 1, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasuhito Oshima
  • Patent number: 6811945
    Abstract: A method of producing a pattern-formed structure, comprising: preparing a substrate for a pattern-formed structure having a characteristic-modifiable layer whose characteristic at a surface thereof can be modified by the action of photocatalyst; preparing a photocatalyst-containing-layer side substrate having a photocatalyst-containing layer formed on a base material, the photocatalyst-containing layer containing photocatalyst, arranging the substrate for a pattern-formed structure and the photocatalyst-containing-Iayer side substrate such that the characteristic-modifiable layer faces the photocatalyst-containing layer with a clearance of no larger than 200 &mgr;m therebetween; and irradiating energy to the characteristic-modifiable layer from a predetermined direction, and modifying characteristic of a surface of the characteristic-modifiable layer, thereby forming a pattern at the characteristic-modifiable layer.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: November 2, 2004
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Hironori Kobayashi
  • Publication number: 20040131975
    Abstract: A photosensitive lithographic printing plate comprises a photosensitive layer and a protective layer formed in this order on a support, wherein the photosensitive layer has a maximum peak of spectral sensitivity within a wavelength range ranging from 390 to 430 nm, the minimum exposure for the photosensitive lithographic printing plate for image formation at a wavelength of 410 nm (S410) is at most 100 &mgr;J/cm2, and the relation between the minimum exposure for image formation at a wavelength of 450 nm (S450) and the minimum exposure for image formation at a wavelength of 410 nm (S410) is 0<S410/S450≦0.1.
    Type: Application
    Filed: December 18, 2003
    Publication date: July 8, 2004
    Applicant: LASTRA S.p.A.
    Inventors: Toshiyuki Urano, Kazuhiro Kohori, Hideaki Okamoto
  • Patent number: 6723492
    Abstract: A lithographic printing plate precursor comprising a water-resistant support having provided thereon a light-sensitive layer containing fine titanium oxide grains doped with a metallic ion which absorb a visible ray and a complex composed of an organo-metallic polymer which is formed by a hydrolysis polymerization condensation reaction of a compound represented by formula (I) shown below and an organic polymer which has a group capable of forming a hydrogen bond with the organo-metallic polymer: (R0)nM(Y)x−n  (I) wherein R0 represents a hydrogen atom, a hydrocarbon group or a heterocyclic group; Y represents a reactive group; M represents a metallic atom having from 3 to 6 valences; x represents a valence of the metallic atom M; and n represents 0, 1, 2, 3, 4, 5 or 6, provided that the balance of x−n is not less than 2. A method for the preparation of a lithographic printing plate using the lithographic printing plate precursor is also disclosed.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: April 20, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Seishi Kasai
  • Patent number: 6706462
    Abstract: A photosensitive image-recording material comprising a support having provided thereon a photosensitive layer and an oxygen-cutoff layer (protective layer).
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: March 16, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasubumi Murota, Kazuto Kunita, Shigeo Koizumi
  • Publication number: 20040023136
    Abstract: The present invention provides an initiator system including an infrared-absorbing compound that exhibits an electronic transition band in the near-infrared region, an initiator, and a metallocene compound. Upon exposure to infrared radiation, the initiator system is capable of producing radicals sufficient to initiate a photopolymerization reaction. Suitable infrared-absorbing compounds include indocyanine dyes, for example. Trihalomethyl triazine compounds and onium compounds are suitable initiators. Suitable metallocene compounds include ferrocenes and titanocenes. The present invention also provides an infrared-sensitive composition including an ethylenically unsaturated polymerizable component, an infrared-absorbing compound that exhibits an electronic transition band in the near-infrared region, an initiator, and a metallocene compound. The infrared-sensitive composition provides improved photospeed and sensitivity in some embodiments.
    Type: Application
    Filed: August 1, 2002
    Publication date: February 5, 2004
    Inventors: Heidi M. Munnelly, Jianbing Huang
  • Patent number: 6664025
    Abstract: A visible radiation sensitive composition is disclosed. The composition comprises at least one ethylenically unsaturated monomer capable of free radical initiated addition polymerization; optionally, at least one binder; and a photoinitiator system comprising a coinitiator and a cyanopyridone sensitizer. The coinitiator preferably comprises a metallocene and an onium compound.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: December 16, 2003
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Harald Baumann, Michael Flugel
  • Publication number: 20030215745
    Abstract: A process for producing a polymer compound having a double bond in a side chain, wherein a functional group represented by the following formula (1) is subjected to an elimination reaction to form the polymer compound which includes another functional group having the double bond in the side chain thereof represented by the following formula (2): 1
    Type: Application
    Filed: March 11, 2003
    Publication date: November 20, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Kazuhiro Fujimaki
  • Publication number: 20030211420
    Abstract: The present invention provides a PS plate for use in making a lithographic printing plate, comprising an aluminum substrate provided thereon with a light-sensitive layer comprising a polyurethane resin binder, an addition polymerizable ethylenically unsaturated bond-containing compound and a photopolymerization initiator, wherein the polyurethane resin binder is one synthesized from at least the following compounds (i) to (iv): (i) at least one di-isocyanate compound; (ii) at least one diol compound having at least one carboxyl group; (iii) at least one diol compound whose logP value is less than 0; and (iv) at least one diol compound whose logP value is higher than 0.
    Type: Application
    Filed: March 13, 2003
    Publication date: November 13, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Yasuhito Oshima
  • Patent number: 6638686
    Abstract: A planographic printing plate precursor comprising: an aluminum substrate which has been subjected to a roughening treatment and an anodizing treatment; and a photosensitive layer which provided on a surface of said substrate, and which contains an infrared absorbing agent and a water-insoluble and alkali aqueous solution-soluble polymer compound, and whose solubility in an alkali developing solution varies by infrared laser exposure, wherein said substrate is obtained by electrochemically roughening an aluminum alloy plate which contains a trace amount of certain elements to an aluminum alloy of high purity.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: October 28, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hirokazu Sawada, Hisashi Hotta, Akio Uesugi, Hirokazu Sasaki, Tadashi Endo
  • Publication number: 20030198893
    Abstract: A photopolymerizable lithographic printing plate having a photosensitive layer containing a photopolymerization initiator, a compound having an ethylenically unsaturated double bond and a polymer binder, and a protective layer provided in this order on a hydrophilic support, wherein an amount of the compound having an ethylenically unsaturated double bond in the photosensitive layer is from 30% to 70% by weight, and oxygen permeability of the protective layer is from 1×10−15 to 1×10−1 [cm3(STP)·cm/cm2·sec·cmHg].
    Type: Application
    Filed: September 20, 2002
    Publication date: October 23, 2003
    Inventor: Yasuhito Oshima
  • Publication number: 20030194654
    Abstract: A method for treating a photosensitive lithographic printing plate, which comprises exposing the photosensitive lithographic printing plate to laser light, developing with a developer containing an alkali metal silicate and then carrying out post-exposure treatment, said photosensitive lithographic printing plate being prepared by forming a photopolymerizable photosensitive layer having a film thickness of from 1.2 to 4 g/m2 and further forming a protective layer having a film thickness of from 2 to 8 g/m2 on a support having a centerline average height (Ra) of at least 0.35 &mgr;m.
    Type: Application
    Filed: March 5, 2003
    Publication date: October 16, 2003
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Eriko Toshimitsu, Hideaki Okamoto
  • Publication number: 20030194649
    Abstract: Disclosed is a light sensitive composition containing a compound represented by the following formula (1): formula (1) 1
    Type: Application
    Filed: January 29, 2003
    Publication date: October 16, 2003
    Inventor: Toshiyuki Matsumura
  • Publication number: 20030190554
    Abstract: A plate-making method of a printing plate comprising exposing a printing plate precursor having a photosensitive layer comprising a photopolymerizable composition containing (i) a crosslinking agent having two ethylenic polymerizable groups and (ii) a crosslinking agent having three or more ethylenic polymerizable groups, and development processing the exposed printing plate precursor with an alkali developer having a pH of not more than 12.5.
    Type: Application
    Filed: August 29, 2002
    Publication date: October 9, 2003
    Inventor: Kazuto Kunita
  • Publication number: 20030180635
    Abstract: A visible radiation sensitive composition is disclosed. The composition comprises at least one ethylenically unsaturated monomer capable of free radical initiated addition polymerization; optionally, at least one binder; and a photoinitiator system comprising a coinitiator and a cyanopyridone sensitizer. The coinitiator preferably comprises a metallocene and an onium compound.
    Type: Application
    Filed: February 12, 2002
    Publication date: September 25, 2003
    Inventors: Harald Baumann, Michael Flugel
  • Publication number: 20030148218
    Abstract: Disclosed is a printing plate precursor comprising a substrate and provided thereon, a layer containing a light heat conversion material, wherein the light heat conversion material does not substantially change in nature when allowed to stand in a temperature atmosphere of 400 to 500° C. for 10 minutes or a printing plate precursor comprising a substrate and provided thereon, a hydrophilic layer which is porous, wherein the hydrophilic layer contains a carbon atom-free material in an amount of not less than 91% by weight.
    Type: Application
    Filed: May 30, 2002
    Publication date: August 7, 2003
    Inventor: Takahiro Mori
  • Publication number: 20030077541
    Abstract: A photosensitive composition comprising (i) a sensitizing dye represented by the following formula (I), (II) or (III) defined in the specification, (ii) a titanocene compound and (iii) a compound of undergoing a reaction with at least one of a radical and an acid to change at least one of its physical and chemical properties and maintaining the changed physical or chemical property, and a lithographic printing plate having a photosensitive layer comprising the photosensitive composition.
    Type: Application
    Filed: May 28, 2002
    Publication date: April 24, 2003
    Inventors: Akinori Shibuya, Kazuto Kunita
  • Patent number: 6534240
    Abstract: A method of producing a lithographic printing plate comprising a step of providing on a support a layer has a hydrophobic surface and comprises an oxidizable material and a reducible material, a step of irradiating imagewise with active rays in the presence of a photocatalytic metal compound, wherein the oxidizable material in the irradiated area is decomposed imagewise to convert the layer surface in the irradiated area surface into hydrophilic property and form an imagewise distribution of hydrophilic areas and hydrophobic areas: and a lithographic printing plate precursor used in the aforesaid method. In accordance with this method, no development-processing is required for plate-making, the plate-making operations can be carried out as the plate precursor is mounted on a printing press, and the lithographic printing plate made can have an excellent press life and hardly generates staining.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: March 18, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Satoshi Hoshi
  • Patent number: 6498000
    Abstract: A photocatalyst composite is provided which comprise a substrate having particles of a photocatalyst such as titanium oxide, adhered thereon via a less degradative adhesive such as a fluorinated polymer comprising a copolymer of a vinyl ester and/or vinyl ether and a fluoroolefin, or a silicon based polymer or cement. Furthermore, a process for producing the photocatalyst composite and a coating composition containing the photocatalyst composite are provided.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: December 24, 2002
    Assignees: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Sadao Murasawa, Hajime Murakami, Yasuro Fukui, Mitsuru Watanabe, Akira Fujishima, Kazuhito Hashimoto
  • Publication number: 20020136987
    Abstract: A photosensitive lithographic printing plate comprising: a support; and a photosensitive layer, wherein the photosensitive layer comprises: a polyurethane resin binder comprising an aliphatic cyclic structure which has a carboxyl group as a substituent directly or indirectly attached to the structure; or a polyvinyl alcohol resin binder modified with an acetal skeleton comprising an aliphatic cyclic structure.
    Type: Application
    Filed: November 6, 2001
    Publication date: September 26, 2002
    Inventor: Yasuhito Oshima
  • Publication number: 20010041305
    Abstract: A planographic printing plate precursor comprising:
    Type: Application
    Filed: December 7, 2000
    Publication date: November 15, 2001
    Inventors: Hirokazu Sawada, Hisashi Hotta, Akio Uesugi, Hirokazu Sasaki, Tadashi Endo
  • Patent number: 6294247
    Abstract: Multi-functional materials which have a photocatalytic layer with a photocatalytic function disposed on the surface of a base through a binder layer 6 interposed therebetween. Photocatalytic particles of the photocatalytic layer are joined together by a surface energy or solid-state sintering. The photocatalytic layer may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: September 25, 2001
    Assignee: Toto Ltd.
    Inventors: Toshiya Watanabe, Eiichi Kojima, Keiichiro Norimoto, Tamon Kimura, Mitsuyoshi Machida, Makoto Hayakawa, Atsushi Kitamura, Makoto Chikuni, Yoshimitsu Saeki, Tatsuhiko Kuga, Yasushi Nakashima
  • Patent number: 6294246
    Abstract: Multi-functional materials which have a photocatalytic layer with a photocatalytic function disposed on the surface of a base through a binder layer 6 interposed therebetween. Photocatalytic particles of the photocatalytic layer are joined together by a surface energy or solid-state sintering. The photocatalytic layer may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: September 25, 2001
    Assignee: Toto Ltd.
    Inventors: Toshiya Watanabe, Eiichi Kojima, Keiichiro Norimoto, Tamon Kimura, Mitsuyoshi Machida, Makoto Hayakawa, Atsushi Kitamura, Makoto Chikuni, Yoshimitsu Saeki, Tatsuhiko Kuga, Yasushi Nakashima
  • Patent number: 6268050
    Abstract: Multi-functional materials are classified into those which have a photocatalytic layer with a photocatalytic function directly disposed on the surface of a base and those which have a photocatalytic layer with a photocatalytic function disposed on the surface of a base through a binder layer interposed therebetween. Photocatalytic particles of the photocatalytic layer are joined together by a surface energy or solid-state sintering. The photocatalytic layer has a structure in which fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: July 31, 2001
    Assignee: Toto Ltd.
    Inventors: Toshiya Watanabe, Eiichi Kojima, Keiichiro Norimoto, Tamon Kimura, Makoto Hayakawa, Atsushi Kitamura, Yoshimitsu Saeki
  • Patent number: 6258512
    Abstract: A method for the preparation of a lithographic printing plate comprises exposing imagewise a lithographic printing plate precursor comprising a support having provided thereon a light-sensitive layer containing fine anatase-type titanium oxide grains and a complex composed of an organo-metallic polymer and an organic polymer containing at least one member selected from the group consisting of an amido bond, a urethane bond, a ureido bond and a hydroxy group to an ultraviolet ray to render a surface of the light-sensitive layer hydrophilic in the exposed area. A lithographic printing plate prepared according to the method is also disclosed.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: July 10, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seishi Kasai, Eiichi Kato
  • Patent number: 6255044
    Abstract: A silver halide imaging element is disclosed that is capable of providing a sharp image with silver halide grains still present following imagewise exposure and development. This is achieved by choosing a dispersing medium for the silver halide grains comprised of an organic vehicle and, dispersed therein, titanium dioxide particles having an average size of less than 0.1 micrometer accounting for at least 10 percent by weight of the dispersing medium. The elements are useful for optical printing or scan image retrieval without fixing. The elements can be used for providing black-and-white photographic images, radiographic images or dye images.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: July 3, 2001
    Assignee: Eastman Kodak Company
    Inventors: David H. Levy, John Gasper
  • Patent number: 6210779
    Abstract: Multi-functional materials which have a photocatalytic layer with a photocatalytic function disposed on the surface of a base through an amorphous binder layer 6 interposed therebetween. Photocatalytic particles of the photocatalytic layer are joined together by a surface energy or solid-state sintering. The photocatalytic layer may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles. A lower layer of the photocatalytic layer is embedded in the binder layer such that an intermediate layer is formed between the binder layer and the photocatalytic layer, the intermediate layer including components of the binder and photocatalytic layers in varying concentrations therethrough.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: April 3, 2001
    Assignee: Toto Ltd.
    Inventors: Toshiya Watanabe, Eiichi Kojima, Keiichiro Norimoto, Tamon Kimura, Mitsuyoshi Machida, Makoto Hayakawa, Atsushi Kitamura, Makoto Chikuni, Yoshimitsu Saeki, Tatsuhiko Kuga, Yasushi Nakashima
  • Patent number: 6191062
    Abstract: A photocatalytic functional material having an excellent photocatalytic activity even by a low temperature heat treatment and having a high mechanical strength of the surface. The photocatalytic functional material of the present invention comprises a surface layer (a photocatalytic functional layer) containing a photocatalyst, an electron trapping metal and a photodegradation-resistant matrix. Though the major proportion of the photocatalyst (TiO2 particles, and the like) in the photocatalytic functional layer are covered with the photodegradation-resistant matrix (a thermosetting resin, and the like), the electron-trapping metal effectively traps the electrons generated by the photocatalytic reaction, retains positive holes and generates active oxygen species, so that the photocatalytic function such as deodorant and antimicrobial activities can be fully exhibited.
    Type: Grant
    Filed: May 15, 1997
    Date of Patent: February 20, 2001
    Assignee: Toto Ltd.
    Inventors: Makoto Hayakawa, Makoto Chikuni, Toshiya Watanabe
  • Patent number: 6114092
    Abstract: A photosensitive resin composition for photoresist which is highly sensitive and can directly form an image using a laser is disclosed. Said composition comprises (A) an unsaturated resin having carboxyl group(s) which is obtained by firstly reacting 0.8 to 1.3 moles of an ethylenic unsaturated monocarboxylic acid with 1 mole of an epoxy group of a homopolymer or copolymer of ethylenic unsaturated monomer having an epoxy group to obtain an unsaturated resin which is then reacted with a dibasic acid anhydride, (B) ethylenic unsaturated compound without epoxy group, and (C) photopolymerization initiator.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: September 5, 2000
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Kenji Miyagawa, Kenji Seko
  • Patent number: 6093518
    Abstract: The present invention provides a visible laser-curable photosensitive composition wherein a photocuring resin having photosensitive group which is crosslinkable or polymerizable upon light exposure, is mixed with a photopolymerization inititor system consisting of a coumarin type pigment of particular structure and a titanocene compound. This composition has an unexpectedly high sensitivity to visible laser.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: July 25, 2000
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Genji Imai, Hideo Kogure
  • Patent number: 6051366
    Abstract: A visible radiation sensitive composition is described which comprises a binder, one or more polymerizable compounds containing at least one polymerizable group, and one or more dyes having an absorption range in the emission range of the radiation source, characterized in that said composition comprises as an initiator an initiator system consisting of a metallocene as a photoinitiator and an onium compound as a coinitiator. The visible radiation sensitive composition shows an increased radiation sensitivity compared to the known radiation sensitive compositions and is especially suitable for recording materials such as printing plates, which can, in particular, also be exposed by means of laser radiation in the visible range.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: April 18, 2000
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Harald Baumann, Hans-Joachim Timpe, Hans-Peter Herting
  • Patent number: 6027797
    Abstract: Multi-functional materials which have a photocatalytic layer with a photocatalytic function disposed on the surface of a base through a binder layer 6 interposed therebetween. Photocatalytic particles of the photocatalytic layer are joined together by a surface energy or solid-state sintering. The photocatalytic layer may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: February 22, 2000
    Assignee: Toto Ltd.
    Inventors: Toshiya Watanabe, Eiichi Kojima, Keiichiro Norimoto, Tamon Kimura, Mitsuyoshi Machida, Makoto Hayakawa, Atsushi Kitamura, Makoto Chikuni, Yoshimitsu Saeki, Tatsuhiko Kuga, Yasushi Nakashima
  • Patent number: 6007976
    Abstract: A silver halide imaging element is disclosed that is capable of providing a sharp image with silver halide grains still present following imagewise exposure and development. This is achieved by choosing a dispersing medium for the silver halide grains comprised of an organic vehicle and, dispersed therein, titanium dioxide particles having an average size of less than 0.1 micrometer accounting for at least 10 percent by weight of the dispersing medium. The elements are useful for optical printing or scan image retrieval without fixing. The elements can be used for providing black-and-white photographic images, radiographic images or dye images.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: December 28, 1999
    Assignee: Eastman Kodak Company
    Inventors: David H. Levy, John Gasper
  • Patent number: 6007963
    Abstract: A method of producing a patterned array of features, in particular, gate apertures, in the size range 0.4-0.05 .mu.m using projection lithography and extreme ultraviolet (EUV) radiation. A high energy laser beam is used to vaporize a target material in order to produce a plasma which in turn, produces extreme ultraviolet radiation of a characteristic wavelength of about 13 nm for lithographic applications. The radiation is transmitted by a series of reflective mirrors to a mask which bears the pattern to be printed. The demagnified focused mask pattern is, in turn, transmitted by means of appropriate optics and in a single exposure, to a substrate coated with photoresists designed to be transparent to EUV radiation and also satisfy conventional processing methods.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: December 28, 1999
    Assignee: Sandia Corporation
    Inventors: T. E. Felter, Glenn D. Kubiak
  • Patent number: 5976735
    Abstract: There is described a lithographic plate which comprises a base coated with a photopolymerisable composition which comprises a polymeric binder, at least one free-radically polymerisable ethylenically unsaturated compound and as the photoinitiator combination a metallocene compound, N-phenyl glycine or a substituted N-phenyl glycine or an N-phenyl glycine derivative together with a third component which is a substance which helps in the reaction initiation but also increases the sensitivity of the photopolymerisable composition to a desired region of the spectrum.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: November 2, 1999
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Alan Stanley Victor Monk, Peter Andrew Reath Bennett, Christopher David McCullogh, Geoffrey Horne
  • Patent number: 5965324
    Abstract: A light sensitive composition and a manufacturing method of a planographic printing plate employing the same are disclosed, the composition comprising a radical generating agent and a dye represented by the following formula (1), (2) or (3): ##STR1##
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: October 12, 1999
    Assignee: Konica Corporation
    Inventors: Kimihiko Okubo, Noritaka Nakayama
  • Patent number: 5853866
    Abstract: Multi-functional materials are classified into those which have a photocatalytic layer 2 with a photocatalytic function directly disposed on the surface of a base 1 and those which have a photocatalytic layer 2 with a photocatalytic function disposed on the surface of a base 1 through a binder layer 6 interposed therebetween. Photocatalytic particles of the photocatalytic layer 2 are joined together by a surface energy or solid-state sintering. The photocatalytic layer 2 may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: December 29, 1998
    Assignee: Toto Ltd.
    Inventors: Toshiya Watanabe, Eiichi Kojima, Keiichiro Norimoto, Tamon Kimura, Mitsuyoshi Machida, Makoto Hayakawa, Atsushi Kitamura, Makoto Chikuni, Yoshimitsu Saeki, Tatsuhiko Kuga, Yasushi Nakashima
  • Patent number: 5849465
    Abstract: A photosensitive liquid precursor solution including titanium carboxyketoesters or titanium carboxydiketonates polymerizes upon exposure to ultraviolet radiation. The solution is applied to an integrated circuit substrate, masked, and exposed to ultraviolet radiation to pattern the liquid precursor film. Unexposed portions of the film are removed in a developer solution including alcohol and water. The remaining portion of the film constitutes a pattern that may be annealed to form a metal oxide.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: December 15, 1998
    Assignees: Symetrix Corporation, Mitsubishi Materials Corporation
    Inventors: Hiroto Uchida, Katsumi Ogi, Nobuyuki Soyama
  • Patent number: 5800965
    Abstract: A photopolymerizable composition for a photosensitive lithographic printing plate, comprising (A) addition-polymerizable ethylenically unsaturated bond-containing monomers, (B) a photopolymerization initiator system and (C) a polymer binder having carboxyl groups in its molecule, wherein the addition-polymerizable ethylenically unsaturated bond-containing monomers (A) contain a specific monomer which is a phosphoric acid ester compound (A-1) having at least one (meth)acryloyl group and/or a compound (A-2) of the following formula ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group, X is a C.sub.1-6 alkylene group which may be branched and may be substituted by halogen, and m is an integer of at least 2, and the polymer binder (C) having carboxyl groups in its molecule, is a compound having at least a part of the carboxyl groups reacted with an alicyclic epoxy group-containing unsaturated compound.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: September 1, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shigeo Tsuji, Hideaki Okamoto
  • Patent number: 5738974
    Abstract: A photopolymerizable composition comprising an addition polymerizable compound having at least one ethylenically unsaturated double bond and a photopolymerization initiator system, wherein the photopolymerization initiator system comprises:(a) a titanocene compound, and(b) at least one coumarin compound of the following formula (I): ##STR1## wherein (i) each of R.sup.1, R.sup.2 and R.sup.5 is a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, each of R.sup.3 and R.sup.4 is an alkyl group, provided that at least one of R.sup.3 and R.sup.4 is a C.sub.4-16 alkyl group, or (ii) R.sup.1 is a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, and at least one set of R.sup.2 and R.sup.3, and R.sup.4 and R.sup.5, is connected to form an alkylene group substituted by a lower alkyl group, provided that when they do not form the connecting group, each of R.sup.2 and R.sup.5 is a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, and each of R.sup.3 and R.sup.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: April 14, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hideki Nagasaka, Toshiyuki Urano, Akihisa Murata
  • Patent number: 5723260
    Abstract: An unsaturated group-containing urethane compound of the following formula (I): ##STR1## wherein X is a C.sub.1-20 alkylene group which may be branched, and R.sup.1 is a group of the following structural formula (A) or (B): ##STR2## wherein each of R.sup.2 and R.sup.3 which are independent of each other, is a hydrogen atom or a methyl group, and Y is a C.sub.1-6 alkylene group which may be branched.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: March 3, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shigeo Tsuji, Hiroshi Tomiyasu
  • Patent number: 5578426
    Abstract: There is disclosed a method for processing a silver halide color photographic material having, on a support, at least one photosensitive silver halide emulsion layer, which comprises processing after exposure to light said silver halide color photographic material, wherein the silver halide in said emulsion layer contains 90 mol % or more of silver chloride, and said photographic material has a white pigment-containing hydrophilic colloid layer coated on the support, the coating amount of the white pigment being 2 g/m.sup.2 or more, with a color developer containing chloride ions in an amount of 0.04 to 0.25 mol/l.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: November 26, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Koichi Nakamura
  • Patent number: RE38199
    Abstract: A method for the preparation of a lithographic printing plate comprises exposing imagewise a lithographic printing plate precursor comprising a support having provided thereon a light-sensitive layer containing fine anatase-type titanium oxide grains and a complex composed of an organo-metallic polymer and an organic polymer containing at least one member selected from the group consisting of an amido bond, a urethane bond, a ureido bond and a hydroxy group to an ultraviolet ray to render a surface of the light-sensitive layer hydrophilic in the exposed area. A lithographic printing plate prepared according to the method is also disclosed.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: July 22, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seishi Kasai, Eiichi Kato